<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=
    , initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    文本框: <input type="text" placeholder="请输入用户名">
    <br><br>
    密码框: <input type="password" placeholder="请用户输入密码">

    
</body>
</html>